RandomEffects
by T1RAoff
RandomEffects gives a chance to apply a random status effect to a player each time a mob is killed, so kills can bring either a benefit or a penalty.
What it does
Each time a mob dies, a roll decides whether a random status effect is applied. The pool includes beneficial effects such as strength and regeneration, and detrimental ones such as blindness and weakness, so the outcome of a kill is not fixed. The mod is built on Fabric and is published for 1.21.1 only, with the latest file at 1.7.0, a beta build from 2025-10-02. Players must run it on their client, while a server can add it without needing it.
Key features
Random status effects on kills
A chance triggers when a mob is killed, applying a random status effect to the player who made the kill.
Mixed benefits and penalties
The effect pool includes both helpful effects like strength and regeneration and harmful ones like blindness and weakness.
Chance-based outcomes
Whether an effect is applied depends on a roll, so the result of a given kill varies from one to the next.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Mob Death Punishment is a Fabric mod for 1.21.8, server-side only and released under the Creative Commons Attribution 4.0 license. Random Kill Effects is also Fabric-only, server-side only and under the MIT License, with files for 1.21.8 – 26.1.2. Both differ from RandomEffects in environment, since only the server needs them.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| RandomEffects | Fabric | 1.21.1 | Client required, server optional | 2025-10-02 |
| Mob Death Punishment | Fabric | 1.21.8 | Server-side only | 2025-09-01 |
| Random Kill Effects | Fabric | 1.21.8 – 26.1.2 | Server-side only | 2026-09-20 |
Questions
Does RandomEffects need Fabric API?
In the catalog
RandomEffects is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Experience the thrill of the unknown! This mod introduces a chance to gain a random status effect upon killing a mob in Minecraft. Effects can be beneficial (like strength or regeneration) or detrimental (like blindness or weakness).
Official listing
- Modrinth page
- modrinth.com/mod/randomeffectsrng
- Owner
- T1RAoff
- Published
- 2025-10-02
- Updated on Modrinth
- 2025-10-02
- Facts verified
- 2026-10-15